AIDS is an abbreviation for acquired immunodeficiency syndrome, a chronic infectious disease caused by infection with the human immunodeficiency virus. HIV is transmitted mainly through blood and body fluid contact, sexual contact and vertical transmission from mother to child. HIV infection can invade the lymphocytes of the body, leading to impaired immune function, further leading to immune deficiency or failure, and eventually causing various opportunistic infections and tumor development. It is characterized by rapid clinical transmission, slow onset and high mortality rate. The mortality rate of AIDS is very high, almost all deaths occur in about 5 years. If combined with other hepatitis viruses such as hepatitis B and C, the progression is generally faster and the prognosis is very poor. Therefore, the management of AIDS should be strengthened, awareness of AIDS should be raised, and prevention of AIDS should be enhanced. There is no specific treatment for AIDS, but only highly effective anti-retroviral therapy to slow down the progression of the disease and repair the damaged immune function, and corresponding treatment for various complications.